Offset
The time difference between Buenos Aires and Hangzhou is 11 hours.
Buenos Aires (ART) is behind Hangzhou (CST).
ART: UTC-3
CST: UTC+8
Neither Buenos Aires nor Hangzhou is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Buenos Aires and Hangzhou don't overlap on the same weekday. Hangzhou is 11 hours ahead of Buenos Aires.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–9 AM in Buenos Aires (6 PM–8 PM in Hangzhou) — suggest 8:00 AM Buenos Aires (7:00 PM Hangzhou).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Argentina
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Day of Remembrance for Truth and JusticeTue, Mar 24
- Day of the Veterans and Fallen of the Malvinas WarThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- May RevolutionMon, May 25
- Anniversary of the Passing of General Martín Miguel de GüemesMon, Jun 15
- General Manuel Belgrano Memorial DaySat, Jun 20
- Independence DayThu, Jul 9
- General José de San Martín Memorial DayMon, Aug 17
- Day of Respect for Cultural DiversityMon, Oct 12
- National Sovereignty DayMon, Nov 23
- Immaculate Conception DayTue, Dec 8
- Christmas DayFri, Dec 25
China
- New Year's DayThu, Jan 1
- Chinese New Year (Spring Festival)Tue, Feb 17
- Labour DayFri, May 1
- Dragon Boat FestivalFri, Jun 19
- Mid-Autumn FestivalFri, Sep 25
- National DayThu, Oct 1
About these zones
Buenos Aires uses Argentina Time (ART). To call Argentina, dial +54.
Hangzhou uses China Standard Time (CST). To call China, dial +86.
Hangzhou is approximately 12,150 miles south of Buenos Aires.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Buenos Aires | Hangzhou | Day |
|---|---|---|
| 12:00 am | 11:00 am | Same day |
| 1:00 am | 12:00 pm | Same day |
| 2:00 am | 1:00 pm | Same day |
| 3:00 am | 2:00 pm | Same day |
| 4:00 am | 3:00 pm | Same day |
| 5:00 am | 4:00 pm | Same day |
| 6:00 am | 5:00 pm | Same day |
| 7:00 am | 6:00 pm | Same day |
| 8:00 am | 7:00 pm | Same day |
| 9:00 am | 8:00 pm | Same day |
| 10:00 am | 9:00 pm | Same day |
| 11:00 am | 10:00 pm | Same day |
| 12:00 pm | 11:00 pm | Same day |
| 1:00 pm | 12:00 am | +1 day |
| 2:00 pm | 1:00 am | +1 day |
| 3:00 pm | 2:00 am | +1 day |
| 4:00 pm | 3:00 am | +1 day |
| 5:00 pm | 4:00 am | +1 day |
| 6:00 pm | 5:00 am | +1 day |
| 7:00 pm | 6:00 am | +1 day |
| 8:00 pm | 7:00 am | +1 day |
| 9:00 pm | 8:00 am | +1 day |
| 10:00 pm | 9:00 am | +1 day |
| 11:00 pm | 10:00 am | +1 day |
Daylight saving time
Neither Buenos Aires nor Hangzhou observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:57 AM
- Sunset
- 5:50 PM
- Day length
- 9h 54m
- Sunrise
- 4:58 AM
- Sunset
- 7:00 PM
- Day length
- 14h 2m
Daylight overlap: 4m — 7:57 AM–8:00 AM in Buenos Aires (6:57 PM–7:00 PM in Hangzhou). Both locations are in daylight during this window.
Cities in these zones
Other cities in China Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Argentina Time
- AEP
- EZE
Airports in China Standard Time
- PVG
- SHA
- PEK
- PKX
- SZX
- CAN
- FUO
- CTU
- TFU
- TSN
Related conversions
Common conversions
- What is 9:00 am Buenos Aires in Hangzhou?
- 9:00 am Buenos Aires is 8:00 pm Hangzhou.
- What is 12:00 pm Buenos Aires in Hangzhou?
- 12:00 pm Buenos Aires is 11:00 pm Hangzhou.
- What is 12:30 pm Buenos Aires in Hangzhou?
- 12:30 pm Buenos Aires is 11:30 pm Hangzhou.
- What is 2:00 pm Buenos Aires in Hangzhou?
- 2:00 pm Buenos Aires is 1:00 am Hangzhou, the next day.
- What is 5:00 pm Buenos Aires in Hangzhou?
- 5:00 pm Buenos Aires is 4:00 am Hangzhou, the next day.
- What is 11:30 pm Buenos Aires in Hangzhou?
- 11:30 pm Buenos Aires is 10:30 am Hangzhou, the next day.